NumberMate is an arithmetic and scientific calculator, adding machine, time calculator, and unit converter that documents calculations on multiple tapes which you can edit. Change, insert, delete, annotate, sort numbers. Link numbers (like spreadsheet references). Embed calculations within calculations. Store calculation results in a table. Show running total, group totals, grand totals, item counts. Print, save tapes.

Poster and Banner maker software, Click2Poster, turns anything you print into an enlarged sign of any size. Choose the size of the poster or banner and Click2Poster will figure out how many pieces of paper you need and print your sign. Once you own this program, the possibilities are endless. Free to Try.

Print a photograph as a life-size poster, a wall sized copy of a web page, or a map of the world and hang it on a classroom wall.

Free calculator for Windows with an editable "tape" instead of one-line screen, which makes everyday calculations very convenient. Performs plus, minus, multiply, divide, square root, and percent calculations. Implies no limitations on precision and provides controllable rounding-up. Remembers everything forever and allows one to browse through full calculation history as if it were a text and reuse numbers or correct any misprints at any moment.